An amazing underestimated perhaps microchip.
It is used on the EKO CL.61 organ synthesizer. Possibly on the EKO Pony too as they are similar.
It is used on Siel DK70, DK80, EX80 Expander 80 etc.
It's sound production is similar in many ways to an Eminent Solina string ensemble.
The M112 gets a clock of 2MHz square wave. By various divisions a top octave synthesis TOS is made. Inside it are counters to divide every top note to create a full spectrum of 94 independent square waves.
These tones are apparently there, all the time and the internal 8 VCAs create 8 voices from them.
When data is sent to its data bus it controls which of all these tones must be switched to, multiplexed. Data bus commands include octave, note, envelope for VCA etc. In this way the M112 creates 8 microprocessor programable sound generator channels.
More on its data sheet by Googling just M112 sound generator.
The link is:
http://www.milton.arachsys.com/nj71/pdf/m112.pdf
It sound amazing and of course it is analog digitally controlled.
It is used on the EKO CL.61 organ synthesizer. Possibly on the EKO Pony too as they are similar.
It is used on Siel DK70, DK80, EX80 Expander 80 etc.
It's sound production is similar in many ways to an Eminent Solina string ensemble.
The M112 gets a clock of 2MHz square wave. By various divisions a top octave synthesis TOS is made. Inside it are counters to divide every top note to create a full spectrum of 94 independent square waves.
These tones are apparently there, all the time and the internal 8 VCAs create 8 voices from them.
When data is sent to its data bus it controls which of all these tones must be switched to, multiplexed. Data bus commands include octave, note, envelope for VCA etc. In this way the M112 creates 8 microprocessor programable sound generator channels.
More on its data sheet by Googling just M112 sound generator.
The link is:
http://www.milton.arachsys.com/nj71/pdf/m112.pdf
It sound amazing and of course it is analog digitally controlled.
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